I have done a couple of the handhelds in the past. I am wondering if it is time to do my router table router. It is a PC 7518. I havent put a dial indicator on it, my main 'diagnostic' is listening to it, and in particular as it winds down after being shut off. When new bearings the routers wind down smoothly. After time, there is a speed range where it 'chatters' and makes a rough sound as it winds down. I understand resonate frequencies etc etc.
I always took this as an indication the bearing was going bad. But dont actually 'know' this.
Any insight from the gurus here? How do you know when a router bearing needs replacement?
(have the bearings sitting in a drawer for over a year... always keep a spare set)